Filling-fork grid for looms



July 3, 1923.

l N. KNIGHT FILLING FORK GRID FOR LOOMS Filed Sept. 9. 1922 2 Sheets-Sheet l lnve nTor. Need KnighT WW MA M AlTys.

July 3, 1923. 1,460,589 N. KNIGHT FILLING FORK GRID FQR LOOMS Filed Sept. 9, 1922 2 Sheets-Sheet 2 Fig.3.

as R 5 lnv enTor.

NEED

misfit el e'esef ii wte QLi e .ASSIGNPR To DBA C r -i m 9 MA SMH S S, A OORPOBATHON o1? MAINE- FILLING-FORK GRID FOR ooms.

r v i Apnlicgtiqufiledfifiptember 9, 1922. Seria1No.v587,'055.

lleial aehomi mey con ern: I Y

eii kiiQWZ tha a it zen th :United; State re iden .Q L cas r, qq nty o Lanqas ,-;S et goo- Sou h Sara- -ae, ha inven ed an lmnrovernentin l nglimk iG fitls @Eq Lo m w i h the tol ouii g es intion,- niq neqti l "with th accompmaiingflmfingi spe ifica ion, lik h taq ers qintli thawing epresen ng lik -pa u T-his intenti n relate to imi toae ei i in itting" t teq ng m h' m f loo s, and

o automat al y alte in h to ls gr d o the loom irn 1. 1 o othe m terial h h :WQlIlQlziEQRQ to clogt ie sam i-zind pm.- es hmne oper tio o the fil g-f kif, ur ng the iQP E -iQn o th "l op, he

,e i h fi 'li g iorkidetectig m an sm b c me lu e :by: a rea on f ac um lat n of tinr th filling teak-maybe lte te 1 o more. piQk -even thoug here may b abseuce f -t l- ,st i s ui ng i h nro u -isu o fa tyi eave i .elqth H t t -brush and finger hav be n fiD-PlQXQQ ta earthe g id 11 uch lint and? w te Th pr s n nte on entemila sbmet y -.th. u e o mpwa l rislacianted otem-ye -W l Q l nt, r

.r mamas tu lqfs the f l ing th spe ifiel yyui um-ht th in non i to provi e @YI'QQMZQJQLQ ex i adap YHPE EEQ Si-YQ rotation .1IOMIQIFLQYQSL1CII sts may accumulat the A fu h r fea ur Q3 the nv n on nsts: n PWfidi-Dgtll sstatabl g id w t me 'epe abi edtt ng th mqyemen o th air td rotate the g tl'in rmit entlyare also provided for clofi'ing the lint, waste, Wherswtssiatfio the r ta able rid m b r ter ueh meteria ha pas ed u ou fift s fie dlp the anus f rk.

A feathe bal et fi ths. n ent nen .01 is agitat d to be e elie t9 losse Fig. 3 and, i i 7 5' is azrearelevation of-the construe .s typeset tease.

quently only so niueh of a looni construction is illustrated herein as is necessary to thereto.

In the drawings: i

Fig. "1 is an elevation of a-portion of the lay of a 100m illustrating the present inve'ntionapplied thereto. g

Egg. 2 is atransverse vertical sectional view-on line 2x2 Fig-. 1 also showing the position of the filling fork in operative relationthereto.

Fig. 3 is acletail elevationof a modified form of; the present invention.

show the applicationof the present invention Fig.4; is-a-n end View, partially in vertical section of the construction, illustrated in tiolil show-n fin Fig. 3.

Inasmuch as; the invention the, Lay of the loom which supports the; grid anglnthe filling fork which; cooperates with.

applicable to usual; typesl of loomsvonly a portion of tho nd aliewillustratecl'in the accompanying ltawinggtogether with the-usual? protector rod from the movement of which the rotat= ablein'embers of theigriiclr maiyz-bea actuated.-

The. loomwconstrfuction-i illustratedl iii the I drawing; comprises the} lay. 1, having: inounteclthereupon; a shuttle-box 2: and: provicled with the; usual: reeclfB; the; lay being provided with. a; ne cess:;4:,'between': the: end 0% the; reed: and the. shuttle' -box to permit thepassageof-r the filling forgkz The-fi-llingfor-ku it 1 may; be. of any usual: character: and as conventionally illustrated: herewith: comprises the; usual slide-i5; having. a bifurcated: encl provided. with transverse shaft? 6,1 upom which is. pivotally; mounted a: filling fork i Y having downwardly; extended times 7 and: a

horizontali looped-i tail 8, adapted tovloe: en-

gageclwupon detection, of absence:' of? fillingby; the -hook 9; 7 upon. the; usual oscillating weft-hammer. p

The; present: invention-relates to the a grid! with which-thefi'llingfork cooperates up n theibeat up. of the-lay.- In: usual construc ,tions the grid; consists-iota; s'lotteclgi plate .oii-- a seriesotibarsgbetween WhlhlthQ-L tlIIGSFOf-kf the filling; for -semen: 199111 theeibeataupzi of: e; liY kQlsi i iml fi i iii running:

to h ,c -l? h ttle 1 ross s etheagzrid itiensl tilts the filling fork so that iooped tail fis out of the path ofmo'wehfeiit of the hook upon the weft hammer, the absence of filling, the'fillingfdrkis not tilted and the weft hammer hei' lhpon engages the looped of thefillihg fork, and upon its recedirfg'inoyeirieht moves the filling fork slide 5, angil through it actuates means to effect a Jc liange in the operation of the loom, such "as the initiation of the action of the trans-- ferring mechanism, Or a stoppage of the loom. lVhere lint or waste material accumulates on the grid, the filling fork will be actuated even thoiwh there is not an absence of filling and thereby fail to effect a change in the operation of the loom and consequently produce a fault the weave.

In the present invention a novel form of grid is provided which has a movable memher or members which preferably are rotatable and progressively move the lint or other waste material out of the path of the filling fork, such waste material being removed from the movable member or members of the grid by a suitable dofling device so that the grid is maintained clean at all times.

In the preferred construction illustrated herein, the grid comprises a series; of spaced. rotatable members preferably in the form:

of disks which are so positioned as to 00-- operate properly with the filling fork. Therotatable grid members desirably are ac-- tuated by a mechanism which is operated during the movement of the lay. Various:

means can be employed for accomplishing this purpose. Two selected forms of such. means are illustrated in the accompanyingdrawings.

In the construction illustrated in Figs.

1 and 2, the grid comprises a series of disks- 11, which are fixedly secured upon a shaft 12, and spaced apart by suitable sleeves 13.. The shaft 12, is mounted in hearings in the ears 14, of a channeLshaped bracket the base- 15 ofwhich is provided with a vertical slot 16,.

through which passes a bolt 17, which secures the bracket to the wall 18, of the shuttle-box 2. By reason of the bolt and slot connection which secures the bracket 5 to the shuttle-box, the grid can be adjusted upwardly or downwardly into proper cooperatiie relation to the filling fork.

A ratchet wheel 19, is fixedly secured upon.

the shaft 12, and is actuated by a suitable 53, pawl which is operated by the movementof the protector mechanism to rotate the ratchet intermittently and thereby progressively to rotate the disks of the grid.

The pawl mechanism for rotating the 0 grid, which is illustrated in Figs. 1 and 2,

an arm 23, the lower end of which is provided with a lateral extension 24, having a.

recess partially to embrace the usual pr0-- arm 23, by suitable bolts 27, serves to secure the arm 23, rigidly to theprotector rod.

The pawl 20, is provided with a downwardly-extending tail 28, and a spring 29,. interposed between the tail 28 and the arm 23, serves normally to press the hooked end 21 of the pawl upon the ratchet 19.

The usual oscillation of the protector rod upon the boxing of the shuttle upon each pick of the loom, causes an oscillation of the arm 23, so that the pawl 21 is actuated successively first to ride over the teeth of the ratchet 19, and then to engage and rotate the ratchet 19 and consequently to rotate the grid. Any suitable means maybe provided to prevent retrograde rotation of the ratchet. As illustrated herein, a dog is provided comprising a plate 30, which is slidably mounted on pins 31, extending upwardly from the ears 14 of the bracket which supports the grid and normally rests upon said ears. The plate 30 has a tooth which rests upon and engages the teeth of the ratchet as the latter is intermittently r0- tated. grid members which is thus effected, any lint or other waste material which adheres to the disks of the grid is carried out of the field of the tines of the filling fork.

Any'suitable means may be provided for doifing the waste material from the grid members. A convenient device which is illustrated herein comprises a vertical slotted plate 32, which is supported upon one of the ears 14, of the bracket. The fingers of the slotted plate extend between the disks of the grid and rest at their ends against the spacing sleeves which separate the disks. 1

By reason of the rotation of the In the operation of the device the progres sive rotation of the disks carries the lint and other material around until such material is engaged by the fingers of the doffing plate which strip such'material from the grid, thus freeing the portions of the disk which are presented to the filling fork from anything which would be likely to interfere with the proper operation of the 1fork.

In Figs. 3, 4 and 5, modified mechanism is illustrated for rotating the grid. In this construction as in that shown in Fig. 3, the grid comprises a series of disks 11,

which are mounted upon a shaft 12, and

are spaced apart by collars 13. Likewise the shaft 12, is rotatably mounted in ears 14 "of a bracket, the base 15 of which is pro-' vided with a slot 16, by means of which the bracket may be adjustably secured to the shuttle-box. A ratchet disk 19, likewise is secured to the shaft 12, and is actuated by pawl and ratchet mechanism which is operotpa-wl m chanis L-rheaas ated..dnr ngethe incr men o th -day In .eomn ises. a plate/3.3:, bait ng, slo't at, which slidably and rotatably embraces the shaftjl2' f; these-ii. .i Wei-$11213 whiche sis eure to the plate 33, by riaetsi fisianrev dedmit a toothjimtoiengage the teeth of the ratchet 19; The end 38- of the plate 33, desirably. is rounded or cam-shaped, and extends a sulficient distance beyond the shaft 12 toengage the" base 15 of the supporting bracket, and limits the oscillation of the plate 33, so that the weighted portion of the pawl will always be maintained well above the horizontal plane of the shaft 12, and positioned at an angle relativelythereto, A Suitable dog 1s provided for preventing retrograde rotation of the ratchet. 'As illustrated herein, the same'form of dog is employed as that illustrated in Figs. 1 and 2,, and comprises a plate 39, which is slidably mounted upon pins 40, extending upwardly from said bracket and provided with an extension or tooth 41 which rests upon the teeth of the ratchet.

A dofling plate 42, having slots to receive the disks 11 of the grid, is mounted upon one of the ears 14; of the brackets, and operates in the manner heretofore described.

In the operation of the device, the forward or beat-up'movement of the layand the sudden arrest of the lay as it engages the fell of the cloth causes the pivotally mount-' ed pawl to swing about the shaft 12,.so that the tooth 37 of the pawl'rides over the teeth of the ratchet. The slot 34,-in the plate 33 permits the pawl to dropv so that the tooth 37 will engage one of the teeth of the ratchet. Upon the. rearward movement of the lay and its sudden arrest at the end of such rearward movement,

the weighted pawl is swung by ,1 its momentum about the axis of the shaft 12, thus causing a rotation of the ratchet 19, and consequently rotating the grid. The swinging movement of the pawl .isarrested by the engagement of the end 38 of the plate 33, with the bracket, and such engagement also serves to lift the pawl so that its'tooth 37, is removed from engagement with the ratchet, and the pawl is ready to be again swung forwardupon the next beat-up movement of the lay. In this construction as in the other the lint and waste material which adheres to the. disks of the grid is carried amal am thespir traa lis epertot the/fol- .rlowingro aim aving; thus de cribed flay iinve itiel inhat mlaimas i new. and; desi e to, secu e by 5 L tIersIatentus-m 'SJ -JEEl-liI g (1-. eetingnnecltanism'ztorllooins iqompnisingg; filling fork-,a grid ,carriedlby the lay -comprising.laa plurality lof lmonalble f members;-.pasit onedytdi copplenategtwith .safid filling fork upon the beat-up of the lay,

means for actuating said movable member to clear the grid of lint and other materials which wouldprevent a properoperation of the filling fork.

2. 1 Filling detecting mechanism forlooms comprising a filling fork, a grid carried by the lay comprising a plurality of rotatable disks positioned to cooperate with said fills ing fork upon the beat-up of the lay, means for rotating said disks intermittently, and

means for doiiin'g lint and other materials from said grid.

I 3. Filling detecting mechanism for looms comprising a'filling fork, a rotatable grid comprising a shaft, a series of separated disks secured thereto in position to cooperate with said filling fork uponthe beat-up of the lay, means-including pawl and ratchet I i mechanism for rotating said disks 'intermittently, and means for dofiing lint and other "materials from said disks.

4. Filling detecting mechanism for looms comprising a filling fork, a rotatable grid carriedby the lay positioned to cooperate with said filling. fork upon the beat-up of the lay, means for rotating said grid and a dofing device locatedout of the field of action of the filling fork acting to clear said gridas' it is progressively rotated.

5.'Filling detecting mechanism for'looms comprising a filling fork,ja rotatable grid carried by the lay positioned to cooperate with. saidfilling fork upon the beat-up of the lay, means for rotating said grid and means for dotting the material which adheres to the grid consisting of a plate having slotsto receivethe rotatable members of the grid. V 6. Filling detecting mechanism for looms comprislng a filling ork, a bracket adjustably secured to the'lay, a shaft rotatably mounted in said bracket, a plurality of disks secured to] said shaft in cooperative relation to thefilling fork upon the: beat-up of'th'e lay, a ratchet secured to said shaft,

.a' pawl operable {during the movement of the lay toen'gage said ratchet ,and rotate said disks intermittently, and a doffing' de vice located out of the field of action of said filling fork acting to clear said grid as it is progressively rotated.

7. In a 100m comprising a lay and protector -mechanism including :an oscillatory protector rod, filling fork. detecting mecha- 1 nism including a'filling fork, a rotatable &

grid mounted on the lay and positioned to cooperate with said filling fork upon the beat-up of the lay, a ratchet connected to said grid, a pawl connected to and operable by the oscillation of said protector rod to engage the teeth of said ratchet and rotate said grid, and means for dofling lint and other material from said grid.

for clearing the same oflint and other maing a series of spaced disks and a dofiing plate having a series of slots receive; said disks.

Intestimony whereof, I have signed my name to this specification. 8. A rotatable filling fork grid and means NEED KNIGHT. I 

